baber/WOPTO huggingface dataset:
Patent GB-1355625-A (GB)
Title: Heat-developable photographic material
IPC: G03C1/498
Filed: 1972-01-31
Abstract: 1355625 Heat-developable photographic material MINNESOTA MINING and MFG CO 31 Jan 1972 [2 Feb 1971] 4482/72 Heading G2C In heat developable photographic material having one or more coating layers including a light-stable oxidisable silver salt, a reducing agent therefor and a small proportion of a photosensitive silver halide as catalyst, there is also included a photo-sensitive halogen-containing organic oxidising agent as stabilizer. The reducing agent may be 2, 2' -methylene bis- (4-methyl-6-tertiary-butylphenol). The stabilizer may be 1, 2, 3, 4-tetrabromobutane, hexabromoethane, tribromoquinaldine, or 1, 2, 3, 4-hexabromocyclohexane. 0À5-3À5 mols of stabilizer per mol of silver halide may be employed. The constituents may be contained in a single layer or in two layers. In the latter case, the second coating may contain the reducing agent or the reducing agent and the stabilizer.
Patent GB-1089376-A (GB)
Title: A metal shielding tape for an electrical cable
Inventor: MILDNER RAYMOND CHARLES
IPC: H01B7/22
Filed: 1964-09-03
Abstract: 1,089,376. Coated tapes. DOW CHEMICAL CO. Sept. 3, 1964 [Nov. 22, 1963], No. 4490/ 67. Divided out of 1,089,375. Heading B2E. [Also in Division H1] The specification is substantially the same as that disclosed in the parent Specification 36080/64 but claims a metal shielding tape for a electric cable, having at least one side coated with a layer of a random copolymer of a major proportion by weight of ethylene and a minor proportion by weight of an ethylenically unsaturated carboxylic acid. The Specification also claims an electrical cable having a conductor core and a metal shielding tape as defined above where at least one of the surfaces of the tape is bonded with the defined copolymer to an adjacent layer. As an example of this a submarine cable having an insulated core 53 can be shielded by a first longitudinally folded tape (not shown) of, e.g. aluminium coated on both sides with the defined copolymer and a further longitudinally folded shielding tape 55 of e.g. thin steel having an adhesive coating of the defined copolymer on at least the outermost side and enclosed within a plastics jacket 57. The adhesive may be applied to the tapes by melt extrusion, powder spraying; by pouring the heated part through a fluidized polymer powder bed or by casting from a solvent solution. Various examples of ethylenically unsaturated carboxylic acids, e.g. acrylic acid are given and the adhesive may be a graft or block co-polymer.
Patent GB-1389631-A (GB)
Title: Method of and apparatus for producing energetic charged-particle extended-dimention beam curtains and pulse-producing structures therefor
IPC: H01J3/02
Filed: 1973-01-30
Abstract: 1389631 Electron beam apparatus ENERGY SCIENCES Inc 30 Jan 1973 [24 March 1972] 4594/73 Heading H1D An electron beam apparatus for producing an elongated beam comprises a cathode 1, a control grid 7, a further grid 13 forming part of an electrostatic screen 11 and a housing 15 containing the vacuum and also acting as anode with an electron pervious window 17 from which the beam emerges. The housing also contains a transformer having primary P and secondary S the latter being connected between cathode 1 and grid 13 to deliver high voltage pulses when pulses are applied to the primary from external circuitry PD. Synchronous pulses are also applied to grid 7. The pulses are of such short duration and of steep rise and fall times that breakdown of the vacuum does not occur. The transformer is made resonant at, say, 80 kHz and the first negative half-cycle of the oscillations is used for the pulse.
Patent GB-1503834-A (GB)
Title: Oscillator
IPC: H03B5/36
Filed: 1976-02-05
Abstract: 1503834 Transistor oscillators TOKYO SHIBAURA ELECTRIC CO Ltd 5 Feb 1976 [6 Feb 1975] 04613/76 Heading H3T An oscillator, e.g. for producing clock pulses, comprises a phase-inverting amplifier 401 having insulated gate FET's 402, 403, a passive feedback network 411 producing phase inversion and voltage step-up, a succeeding amplifier 418 formed of insulated gate FET's 416, 417, and means for coupling a signal from the input side of the amplifier 401 to the amplifier 418. The feedback network may comprise a quartz crystal vibrator 414 and capacitors 412, 413, the former having the larger capacitance to produce the required voltage step-up, the oscillator forming a Colpitts circuit in which the vibrator 414 has an inductive reactance in operation, equivalent to an inductor (L) in series with a resistor (r), Fig. 5 (not shown). A network 410 protects FET 403 from high voltage breakdown. The oscillator may be arranged as a singleended push-pull circuit, Fig. 9 (not shown). The oscillator of the invention is stated to produce outputs at required "0" and "1" levels even if the FET's have different threshold voltages, in contrast to a circuit of the prior art, Fig. 1 (not shown). In other embodiments, Figs. 10, 11 (not shown), a Hartley circuit has a feedback network (801) comprising a tapped inductor (803) and capacitors (802, 806), the input portion of the inductor (804) having a smaller inductance than the output portion (805).
Patent GB-679448-A (GB)
Title: Control device for members capable of limited rectilinear movement
IPC: H01F7/16
Filed: 1951-02-27
Abstract: 679,448. Electromagnetic switches. AKTIEBOLAGET BOFORS. Feb. 27, 1951. [March 1, 1950] No. 4756/51. Class 38 (v). [Also in Groups XXXII and XXXV] In a device having one or more members capable of limited linear movement, e.g. the armature 14 of an electromagnetic relay the member is (or are) maintained in or restored to a predetermined position by two slotted resilient plates 12, 13 disposed transversely to the direction of movement with their edges secured against radial or axial movement and having their inner parts secured to the member or members to impart thereto limited angular movement. As shown, coils 6, 9 are selectively energized to give upward or downward movement to the armature and the slots in plates 12, 13 may be as shown in Fig. 2. Alternating current may be superimposed on the current supplied to the windings.
Patent GB-1072453-A (GB)
Title: Improvements in or relating to advancing hydraulic mine roof supports
Inventor: ALLEN ARCHELAIUS DAWSON
IPC: E21D23/00
Filed: 1964-02-04
Abstract: 1,072,453. Advancing mine-roof supports. GULLICK Ltd. Feb. 2, 1965 [Feb. 4, 1964; March 20, 1964], Nos. 4766/64 and 11977/64. Heading E1E. [Also in Division F1] In an advancing mine roof support system comprising a plurality of sequentially advanced groups at units (A to F) Fig. 1 (not shown) arranged one behind the other and each comprising a plurality of double-acting hydraulic props (1) each secured at its lower end to a floor plate (10) and bearing at its upper end against a roof bar (12) extending in the direction of length of the mineral face, advancement of any particular group of props is effected along parallel guide bars (13) extending along opposite sides of all the groups and secured to the roof bars thereof; the props being suspended from the guide bars with their upper and lower ends free of the roof and floor. The props are advanced by hydraulic jacks (14, 15). In a modification the guide bars are laterally adjustable by further hydraulic jacks (19 to 21).
Patent GB-306039-A (GB)
Title: Improvements in or relating to electrical transformer cooling tanks
IPC: H01F27/12
Filed: 1929-02-13
Abstract: 306,039. Associated Electrical Industries, Ltd., (Assignees of Hill, L. H.). Feb. 14, 1928, [Convention date]. Tanks with radiator elements.-The radiators 2 of an oil tank 4 for an electrical transformer are cooled by air directed over the tubes by baffles 17 dispcsed in casings 11 secured to the radiators and containing fans 6 which induce the air through the spaces between the slots 12 into the casings and force it through the openings 18 in the baffles an to the tubes. The fan motors 7 are controlled manually or by a thermostat arranged in a casing 8 secured to the tank.
Patent GB-1042661-A (GB)
Title: Improvements in or relating to camshafts
IPC: H01H43/12
Filed: 1964-02-05
Abstract: 1,042,661. Securing cams on shafts. SAIA A.G. Feb. 5, 1964 [Feb. 6, 1963], No. 4869/64. Heading F2U. A cam assembly for sequential switching operations comprises a series of cam discs 11 having apertures 15 or slots which permit the discs to be secured on a frame 1, 2, 3 by sliding the discs over bars 3 and turning the discs so that they engage recesses 4 in the bars 3. A rod 17 passes through apertures 16 in the discs 11 and holes 18 in the end discs 1, 2 of the frame to prevent rotation of the discs 11 relative to the frame. The rod 17 also engages a hole 19 in a disc 10 fast with a manually operated driving shaft 9. The cam assembly may be driven through a pawl (not shown) and ratchet 13 integral with one of the cam discs. The elements of the assembly may be stamped from sheet metal or may be made of plastics material. The bars 3 are riveted to the end discs 1, 2 and one end of the rod 17 is riveted to the disc 1. The bars 3 may be arranged radially with the recesses on the radially outermost edge which co-operate with stepped apertures 15. The rod 9 and disc 10 may be slid axially to operate further control switches in the manner described in Specification 1,024,617.
Patent GB-634299-A (GB)
Title: Improvements in or relating to a method of and means for the radio-electric detection of obstacles
IPC: G01S7/03
Filed: 1946-02-15
Abstract: 634,299. Radio transmitting and receiving systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 15, 1946, No. 4875. Convention date, Feb. 7, 1945. [Class 40 (v)] A pulse radar system comprises a transmitter J and a receiver M communicating by means of secondary wave guides GE, GR with a common main wave guide terminated by a horn, the secondary guides being respectively shunted by one or more cavity resonators R1, R2 arranged to be put into and out of the tuned condition by means of potential variable condensers C, D coupled to the resonators and to which pulses are applied from a potentiometer I controlled by a timer K for the transmitter so as to block the receiver guide during transmission and block the transmitter guide during reception. The capacities C and D may be constituted by blocked magnetrons as described in Specification 634,307.
Patent GB-1190262-A (GB)
Title: Improvements in Plastics Bags
Inventor: JACKSON RUSSELL JAMES WILLIAMS
IPC: B65D33/06
Filed: 1966-02-04
Abstract: 1,190,262. Carrying handles. SOM PLASTICS Ltd. 27 April, 1967 [4 Feb., 1966], No. 4911/66. Heading A4G. [Also in Division B8] An open plastics bag is fitted with a handle at its closed end. The handle may comprise a piece of apertured cardboard held in a pocket provided by welding together continuations of the walls of the bag beyond the bottom seam. The cardboard may be adhered to the walls of the pocket. Alternatively the continuations of the walls may be welded at 22 (Fig. 2) to a web 18 integral with or secured to the handle 10. The handle may include an open-structure portion through which the bag material keys. Alternatively the bag walls may be spot welded together through holes in the web 18, or a longitudinal member secured to the handle may be partly enclosed in the welded walls.
Patent GB-624896-A (GB)
Title: Improvements in or relating to television receiving apparatus
IPC: H04N5/74
Filed: 1947-02-20
Abstract: 624,896. Television receivers. IBBOTSON, H. Feb. 20, 1947, No. 4920. [Class 40 (iii)] A viewing unit adapted to be connected by cable to a television receiver located at a distance therefrom comprises a cabinet containing a cathode-ray tube arranged with its axis vertical, the screen being at the lower end, and a mirror located beneath the screen arranged to reflect images produced on the screen to the exterior of the cabinet. As shown in Fig. 1, the cabinet 1 comprises an upper and lower portion 2, 3 respectively, divided by a partition 4 apertured at 5 for the screen end of the cathode-ray tube 6, the neck 8 of which extends upwardly into an extension 9 of the upper cabinet portion 2, the extensions being of reduced width, with reference to the cabinet proper when viewed from the front of the cabinet, and designed to reduce the apparent height of the cabinet and to simulate a useful or ornamental object, e.g. an electric clock. The images produced on the screen 7 of the cathode-ray tube are viewed through a window formed by a lens 16 (preferably of plastic material) by means of a mirror 11 the inclination about the pivot 12 of which may be varied by means of a cam 13 controlled by a knob 15 (Fig. 3) external to the cabinet, a link 19 connecting the mirror to a narrow rectangular mask 17 pivoted at 18 serving to vary the angle of direct vision of the screen 7 as the mirror inclination is varied. Accompanying sound signals are reproduced by two loud-speakers 21, 22 supported, with the magnetic system 24 remote from the tube, by baffle plates 23 disposed tangentially to the conical surface of the bulb portion of the cathode-ray tube in the upper cabinet portion 2, the front and side walls of which are formed of a fabric or gauze screen 25. The neck 8 of the tube is provided with a first collar 29 carrying, on its outer surface, contacts 30 which are connected to the tube contact pins and a second removable collar 28 carrying contacts 27 extending down its inner surface and adapted to engage the contacts 30, when the collar 28 is positioned as shown in the drawing, the upper edges of both collars being substantially flush with the end of the neck 8. A multi-core cable 26 connects the cathode-ray tube and loud-speakers with the appropriate parts of the receiving apparatus 31... 38.
Patent GB-815606-A (GB)
Title: Improvements relating to clips
Inventor: MONTAGUE JAMES ERNEST
IPC: F16L3/123
Filed: 1956-02-17
Abstract: 815,606. Cable clips. CLAYTON-WRIGHT Ltd., H. Feb. 12, 1957 [Feb. 17, 1956], No. 4939/56. Addition to 759,179. Class 36. [Also in Group XXV] A clip of the type disclosed in the parent Specification which is made of semi-flexible material one end being provided with a lug 14 having an aperture 15 therein and the other end being provided with an elongated slot 12 the opposed faces of the lug and the slotted end being provided with mating serrations 13, 18 which can be interengaged to locate the lug at any desired position along the length of the slot, is used in combination with a tubular bush having an outwardly extending radial flange 16 at one end, the reduced portion of the bush being adapted to pass through the aperture 15 in the lug 14 at one end of the clip and having its end remote from the flange adapted to enter the slot 12 in the other end of the clip. The use of the bush makes it possible to use one type of clip with screws or other fastening members of varying diameters by varying only the internal diameter of the bush.
Patent GB-305827-A (GB)
Title: Improvements in processes for producing soluble lead reagents
IPC: C01G21/16
Filed: 1928-02-17
Abstract: 305,827. Robinson, H. W., and Parkes, D. W. Feb. 17, 1928. Lead chloride.-A solution containing lead chloride is obtained by heating lead chloride and an alkali acetate in water with the addition of a small quantity of an acid. The mixture may he heated to about 80‹ C. before the acid is added, and the latter may be nitric, acetic, hydrochloric, citric, tartaric, or sulphuric acid. The solutions obtained, which may contain up to 36 per cent of lead chloride, remain clear at temperatures above about 50‹ C. Specification 305,494, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-753996-A (GB)
Title: Billet extrusion press
IPC: B21C35/04
Filed: 1954-02-23
Abstract: 753,996. Extruding. HYDROPRESS, Inc. Feb. 23, 1954 [March 9, 1953], No. 5278/54. Class 83 (4). A billet extrusion press has a container 10 movable towards and away from the die 15 by pistons 36 to facilitate removal of the discard or for allowing the die to be inspected or lubricated, and additional power-operated means 50 are provided for engaging the container and pressing it into sealing relationship with the die. A slidable crosshead 50, which has an annular face 51 for engaging the container, is connected to pistons 54 operating in cylinders 55 mounted on a main crosshead 27 connected to the main piston 25 which operates the press ram 28. During the approach stroke of the ram, the crosshead 27 moves the crosshead 50 against the container and the fluid pressure in the cylinders 55 urges the container into sealing contact with the die 15 which is mounted in a die holder 16. As the piston 25 continues its stroke the cylinders 55 move over the pistons 54 and expel fluid therefrom. The forward stroke of the crosshead 50 relative to the crosshead 27 is limited by the rods 70 which at their rear ends carry adjustable nuts, Fig. 4 (not shown). The ram is returned by admitting pressure fluid to return cylinders 30 and the crosshead 50 is also retracted during this movement by the rods 70 or, if the pistons 54 are double-acting, by admitting fluid to the cylinders 55.
Patent GB-1363566-A (GB)
Title: Polymerisation of vinyl chloride
IPC: C08F259/04
Filed: 1972-02-04
Abstract: 1363566 Gaseous phase polymerization SOLVAY ET CIE SA 4 Feb 1972 [5 Feb 1971] 5311/72 Addition to 1124237 Heading C3P In the gaseous phase polymerization of vinyl chloride in the presence of a free radical initiator and an inert solid, especially PVC particles, liquid vinyl chloride is injected to control the temperature while controlling the pressure below the saturated vapour pressure of the monomers at the polymerization temperature. The initiator is preferably dispersed on the inert solid and in examples is lauroyl peroxide or a mixture thereof with benzoyl peroxide or diethyl peroxycarbonate. In one example propylene is present as comonomer. A stirred horizontal reactor is used or a vertical fluidized bed reactor. The conditions of Specifications 1,124,237 and 1,308,103 are preferred.
Patent GB-1028641-A (GB)
Title: Improvements in or relating to batteries for use in transporting poultry
Inventor: WHITING CLINTON EDWARD ERNEST
IPC: A01K31/00
Filed: 1963-02-08
Abstract: 1,028,641. Battery cages. UNICORN ENGINEERING CO. Ltd. April 30, 1964 [Feb. 8, 1963], No. 5339/63. Heading A1M. A battery for transporting poultry comprises a base 10, 11 mounted on swivel wheels 13 and supporting end frames 14 and intermediate frames 18, the frames 14, 18 having cross pieces 19 which serve as supports for shelves 20 which divide the battery into a series of compartments 24. Each compartment is closed by a door 25 comprising upper and lower bars 26, 27 and a grill 28, the door being hinged about the lower bar 27. Handles 31 facilitate movement of the battery, which may be adapted to be bolted to the floor of a lorry or trailer.
Patent GB-1426681-A (GB)
Title: Machine for forming random fibre webs
IPC: D04H1/70
Filed: 1974-02-05
Abstract: 1426681 Web formers RANDO MACHINE CORP 5 Feb 1974 [1 March 1973] 05362/ 74 Heading DIN A web former has a first rotary foraminate condenser 75 fed by a duct 73 in which an air stream is created by a suction fan in a housing 65, the mat formed on condenser 75 is fed to a Cickerin 114 which disintegrates the mat and projects it with the aid of an air stream through a second duct 140 to a second movable foraminate condenser 142, the characterising feature being disposition of the first condenser 75 vertically above the Cickerin 114 with their axes in the same vertical plane and the two said ducts being in vertical alignment. Fibre is fed to the web former from a hopper 25 being prevented from matting by an airstream derived from a fan disposed in a terminal knife slitter 174. A water spray 194 is provided in the bin 30 to reduce static.
Patent GB-381072-A (GB)
Title: A process for the manufacture of hydrogen from hydrocarbons
IPC: B01J23/76
Filed: 1932-02-23
Abstract: In the production of hydrogen by the catalytic decomposition of gaseous hydrocarbons such as methane, ethane or ethylene, the catalysts employed consist of mixtures or compounds of the oxides of the iron group (iron, cobalt or nickel) with acid-forming oxides of the A sub-group of the 4th, 5th or 6th groups of the periodic table having a melting-point above 800 DEG  C.; the temperatures employed are in excess of this temperature.  Examples of catalysts are nickel vanadate, titanate, or tungstate, cobalt uranate or vanadate, and iron vanadate or tungstate.  Mixtures of NiO with V2O5, TiO2 or WO3, CoO with U3O8, and Fe2O3 with V2O5 or WO3 may also be employed, not necessarily in molecular proportions.  The catalysts may be associated with carriers such as chamotte or porcelain.  In an example of the process, methane is passed over granulated chamotte coated with nickel vanadate at 1000 DEG  C.; the conversion is at first complete but falls off owing to the deposition of carbon at which point methane is replaced by air until the carbon is removed. The catalyst is prepared by evaporating a mixture of granulated chamotte and nickel nitrate and ammonium vanadate in solution. Specification 324,959, 325,207 and 327,374, [all in Class 90, Non-metallic elements], are referred to.
Patent GB-769473-A (GB)
Title: Improvements relating to plug and socket connectors for electric circuits
IPC: H01R13/655
Filed: 1955-02-23
Abstract: 769,473. Two-part couplings. BUSCHJAEGER DURENER METALLWERKE AKT.-GES. Feb. 23, 1955 [March 5, 1954], No. 5469/55. Class 38 (1). In a socket connector comprising a longitudinallydivided casing 1, 2, provided with external earthing strips 3, 4, projecting through slits 5, 6 in the casing parts, slipping out of the strip 4 from slit 6 during assembly or disassembly of the connector is prevented by a tongue 7 laterally bent-out from the inner end of strip 4 and which hooks over the adjacent part of the casing. Strip 3 is retained by the earthing terminal screw, and both strips are secured in the assembled position by a screw 8 which also holds the casing parts together.
Patent GB-1472344-A (GB)
Title: Methylene dibenzocycloheptanes
IPC: A61K31/135
Filed: 1975-02-10
Abstract: 1472344 Methylene dibenzocycloheptanes SANDOZ Ltd 10 Feb 1975 [13 Feb 1974] 5522/75 Heading C2C Novel compounds of Formula I wherein R 1  and R 2  are each H or F and R 3  is methyl or ethyl and acid addition salts are prepared by reaction of a compound of Formula II wherein R 4  is C 1-4  alkyl with a strong base. Intermediates of Formula II may be prepared by reaction of a compound of Formula III with a compound R 4 .CO.OCl Pharmaceutical compositions in conventional forms for oral administration and having antidepressant activity comprise an above novel compound and a carrier or diluent.